Wow. There was an egg in my bator that was questionable. I kept candling to see if I could make out what was going on in there(they're dark eggs - hard to see). Well, I finally decided it was a no-go - though something was developing in there. I took it out to the field and tossed it and POP - it was way rotten. Sooooooooo glad I took it out! Whew!